<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/vue.js"></script>
</head>
<body>
    <div id="app">
        <h1>{{msg}}</h1>
    </div>
    <script>
        let app = new Vue({
            el:"#app",
            data:{
                msg:"萝卜"
            },
            // ES6写法
            beforeCreate () {
                console.log("beforeCreate");
                console.log(this)
                console.log(this.msg)
            },
            created () {
                console.log("created");
            }
        });
    </script>
    
</body>
</html>